So then I would use a normal cable and go from uplink to standard port?
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2 Switches and Uplink ports
Hi,
I have 2 switches which are connected via standard ports with I guess a cross over cable - both switches also have an uplink port. Connectivity works ok althrough network seems slow - may be completely unrelated - I just want to make sure its set up correctly. What is the best practice way of setting up 2 switches, uplinl ports, cross over cables?
Thanks in advance,
Stewart.
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Answers
Hello Stewart,
Cross-over cables are always the wisest choice, but if the switch supports Auto-MDI-X, then straight-through cable will suffice. I have to echo the request to state the manufacturer and model name of the switches. That way it can be determined what the reason is for the Uplink ports. If the switches are rather old then the Uplink port may be accompanied with a MDI/MDI-X button.
The slow speed may be caused by a Duplex-Mismatch. If you test the speed between two hosts that are physically connected to the same switch (and are also in the same subnet range), is the speed also slower than expected? Would you say that the perceived slow speed is only when the traffic has to cross the switch-to-switch link?
Best regards,
Marinus
OK if you uses the wrong cable then the switch will not connect togather..
IF the switch connects it will run at full speed...
So if dosent matter if u use cross over or stright through. if the ports come up then you are fine and changing cables will not make any diference.
As marinus said check duplex, but don't worry about the cables to much. there may be a "correct" way to do it but I assure you if the switchs connect togather you have the right cable..
Well eeverything works - its just some things seem to be slow. For eg. I have 2 servers plugged into the same Gigabit switch (as well as other PCs) but I am lucky sometime to get 15MB copy rate between them. If I got a seperate Gigabit switch which only had those severs on it an uplinked that switch, would that give a better speed between servers on the same switch?
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by: amnonnesPosted on 2008-12-16 at 04:23:24ID: 23183005
It depends on the switch and the kind of uplink port. If it's a cheap home switch, then the uplink port is exactly the same as a regular port, except it is crossed, which means that you do not need a cross cable. If it's a business switch, then sometimes the uplink port can operate on higher throughput. Usually this kind of switch also can detect automatically if the connection needed is crossed or not, and that means you don't need to worry about crossed cables.